Answered: Question 7: At third codon positions,…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question 7: At third codon positions, approximately what proportion of muations are synonymous?

A. None

B. 4%

C.30%

D. 70%

Expert Solution

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Any change in the DNA sequence results in mutation. Synonymous mutation does not change the amino acid coded by the change in DNA sequence or mutation. Mutation is a change in DNA sequence. Genetic mutations can be caused by DNA copy errors caused by cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or viruses. Transmission of the virus can occur in eggs and sperm and can be passed on to the offspring, whereas somatic mutations occur in immune cells and are not transmitted.

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